linux-hardened/Documentation/block
Linus Torvalds f3cdc8ae11 for-5.8-tag
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Merge tag 'for-5.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Highlights:

   - speedup dead root detection during orphan cleanup, eg. when there
     are many deleted subvolumes waiting to be cleaned, the trees are
     now looked up in radix tree instead of a O(N^2) search

   - snapshot creation with inherited qgroup will mark the qgroup
     inconsistent, requires a rescan

   - send will emit file capabilities after chown, this produces a
     stream that does not need postprocessing to set the capabilities
     again

   - direct io ported to iomap infrastructure, cleaned up and simplified
     code, notably removing last use of struct buffer_head in btrfs code

  Core changes:

   - factor out backreference iteration, to be used by ordinary
     backreferences and relocation code

   - improved global block reserve utilization
      * better logic to serialize requests
      * increased maximum available for unlink
      * improved handling on large pages (64K)

   - direct io cleanups and fixes
      * simplify layering, where cloned bios were unnecessarily created
        for some cases
      * error handling fixes (submit, endio)
      * remove repair worker thread, used to avoid deadlocks during
        repair

   - refactored block group reading code, preparatory work for new type
     of block group storage that should improve mount time on large
     filesystems

  Cleanups:

   - cleaned up (and slightly sped up) set/get helpers for metadata data
     structure members

   - root bit REF_COWS got renamed to SHAREABLE to reflect the that the
     blocks of the tree get shared either among subvolumes or with the
     relocation trees

  Fixes:

   - when subvolume deletion fails due to ENOSPC, the filesystem is not
     turned read-only

   - device scan deals with devices from other filesystems that changed
     ownership due to overwrite (mkfs)

   - fix a race between scrub and block group removal/allocation

   - fix long standing bug of a runaway balance operation, printing the
     same line to the syslog, caused by a stale status bit on a reloc
     tree that prevented progress

   - fix corrupt log due to concurrent fsync of inodes with shared
     extents

   - fix space underflow for NODATACOW and buffered writes when it for
     some reason needs to fallback to COW mode"

* tag 'for-5.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (133 commits)
  btrfs: fix space_info bytes_may_use underflow during space cache writeout
  btrfs: fix space_info bytes_may_use underflow after nocow buffered write
  btrfs: fix wrong file range cleanup after an error filling dealloc range
  btrfs: remove redundant local variable in read_block_for_search
  btrfs: open code key_search
  btrfs: split btrfs_direct_IO to read and write part
  btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK
  fs: remove dio_end_io()
  btrfs: switch to iomap_dio_rw() for dio
  iomap: remove lockdep_assert_held()
  iomap: add a filesystem hook for direct I/O bio submission
  fs: export generic_file_buffered_read()
  btrfs: turn space cache writeout failure messages into debug messages
  btrfs: include error on messages about failure to write space/inode caches
  btrfs: remove useless 'fail_unlock' label from btrfs_csum_file_blocks()
  btrfs: do not ignore error from btrfs_next_leaf() when inserting checksums
  btrfs: make checksum item extension more efficient
  btrfs: fix corrupt log due to concurrent fsync of inodes with shared extents
  btrfs: unexport btrfs_compress_set_level()
  btrfs: simplify iget helpers
  ...
2020-06-02 19:59:25 -07:00
..
bfq-iosched.rst docs: cgroup-v1: add it to the admin-guide book 2019-07-15 11:03:02 -03:00
biodoc.rst docs conversion for v5.3-rc1 2019-07-16 12:21:41 -07:00
biovecs.rst block: add bio_for_each_bvec_all() 2020-05-25 11:25:24 +02:00
capability.rst block: Document genhd capability flags 2020-03-12 07:47:22 -06:00
cmdline-partition.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00
data-integrity.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00
deadline-iosched.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00
index.rst Documentation: Document the blk-crypto framework 2020-05-14 09:46:54 -06:00
inline-encryption.rst Documentation: Document the blk-crypto framework 2020-05-14 09:46:54 -06:00
ioprio.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00
kyber-iosched.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00
null_blk.rst docs: block: null_blk: enhance document style 2019-09-11 16:04:22 -06:00
pr.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00
queue-sysfs.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00
request.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00
stat.rst block: add iostat counters for flush requests 2019-11-21 09:06:47 -07:00
switching-sched.rst Documenation: switching-sched: Remove notes about elevator argument 2019-09-03 08:04:02 -06:00
writeback_cache_control.rst docs: block: convert to ReST 2019-07-15 09:20:27 -03:00